| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 1584.47 | USD | 20251211 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.97 | USD | 20251210 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.52 | USD | 20251209 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.73 | USD | 20251208 |
| Nantong Zhonghe Chem | China national standards | MT | 1583.42 | USD | 20251204 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.95 | USD | 20251203 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.05 | USD | 20251202 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.84 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.17 | USD | 20251128 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.39 | USD | 20251127 |